Respuesta :

This  is

6x^2 + 12 / (x + 6)
Catya
long division

6x^2
___________________
(x+6) | 6x^3 +36x^2 + 12
-6x^3 - 36x^2
-------------------------
0 + 0 + 12

= 6x^2 + 12/(x+6)